<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>小米10居中测试</title>
    <link rel="stylesheet" href="./font_icon/iconfont.css">]
    <link rel="stylesheet" href="./css/reset.css">
    <style>
        .back-top{
            width: 26px;
            height: 206px;
            margin: 20px auto;
            background-color:orange;

        }

        .back-top li a{
            display: block;
            border: 1px solid rebeccapurple;
            border-bottom: none;
            height: 41px;
            width: 26px;
            line-height: 41px;
            text-align: center;
            


        }

        .back-top li a i{
            margin: 0 auto;
        }


        .box1{
            width: 200px;
            height: 200px;
            float: left;
            background-color: rebeccapurple;
        }
        .box2{
            width: 200px;
            height: 200px;
            float: left;
            background-color: red;
        }
    </style>
</head>
<body>
    <div class="back-top">
        <ul class="service-list">
            <li><a href="#">
                    <i class="iconfont icon-phone"></i>
                   
                </a></li>
                <li><a href="#">
                    <i class="iconfont icon-gerenzhongxin"></i>
                   
                </a></li>
                <li><a href="#">
                    <i class="iconfont icon-shouhoufuwu"></i>
                   
                </a></li>
                <li><a href="#">
                    <i class="iconfont icon-rengongkefu"></i>
                   
                </a></li>
                <li><a href="#">
                    <i class="iconfont icon-gouwuche"></i>
                   
                </a></li>
                
        </ul>

    </div>

    <div class="box1">
        
    </div>
    <div class="box2">

    </div>
    
</body>
</html>